1011331333020 has 48 divisors (see below), whose sum is σ = 2834391813120. Its totient is φ = 269434633536.

The previous prime is 1011331332943. The next prime is 1011331333031. The reversal of 1011331333020 is 203331331101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7864500 + ... + 7992059.

It is an arithmetic number, because the mean of its divisors is an integer number (59049829440).

Almost surely, 2^{1011331333020} is an apocalyptic number.

1011331333020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011331333020 is an abundant number, since it is smaller than the sum of its proper divisors (1823060480100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1011331333020 is a wasteful number, since it uses less digits than its factorization.

1011331333020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15857634 (or 15857632 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1011331333020 its reverse (203331331101), we get a palindrome (1214662664121).

The spelling of 1011331333020 in words is "one trillion, eleven billion, three hundred thirty-one million, three hundred thirty-three thousand, twenty".